Valve.



CHARLES E. SCI'IREIDT, OF MANSFIELD, OHIO.

VALVE.

Specification of Letters Patent.

Patented Feb. 24, 1914.

Application filed May 18,1912. Serial N 0. 698,148.

To all whom it may concern:

Be it known that I, CHARLES E. SCHREIDT, a citizen of the United Statesof America, residing at Mansfield, in the county of Richland and Stateof Ohio, have invented certain new and useful Improvements in Valves, ofwhich the following is a specification.

This invention relates to certain new and useful improvements in valves,and has for its object the provision of means which will positivelycontrol the flow of steam or other fluid from the inlet to the outlet insuch manner that the flow will be gradual, i. 6., when the valve isoperated the fluid will be allowed to enter and leave the valvegradually.

In the drawings: Figure l, is a vertical sectional view of theinvention; Fig. 2 is a sect-ion on the line 2-2 of Fig. 1; Fig. 3 is atop plan view of the shell; Fig. 4 is a side elevation of the shell;Fig. 5 is a section on the line 5 5 of Fig. 1; Fig. 6 is a similar viewon the line 66 of Fig. 1; and Fig. 7 is a fragmentary sectional view ofa modification.

The valve casing 1 is formed with an inlet 2 and an outlet 3.- The lowerend of the casing above the inlet 2 is globular in shape as indicated at4 and is formed withan integral circular seat 5- for the disk valve 6,and with a plurality of wings 7 that are threaded to engage with thethreaded pe-' riphery of the disk valve 6. A stud 8 is carried by theupper face of the disk valve 6 and the latter has a slotted head 9 whichpermits turning of the disk valve with a screw driver. Stud 8 is formedwith a flanged head 10 that carries a rod 11 the ends of which projectinto elongated vertical slots 12 formed in the contracted portions 14carried by the lower end of the valve shell 13. The valve shell 13 hasits upper end closed and formed with a socket 15 which is square incross-section, and bears an annular rib 16 that surrounds the socket,the rib bearing against the under face of the cap 17 which is threadedinto engagement with the upper end of the casing 1. A stem 18 having asquared lower end portion 19, which latter extends into socket 15,projects through the cap 17, and further has a collar 20 which engagesand rests on a shoulder 21 formed in the cap. Above the shoulder 21 thecap is chambered to receive a washer 22 that surrounds stem 18 andengages collar "the shell.

20, packing 23 being arranged in the chamber to overlie washer 22, thepacking in turn bemg engaged by a gland 24 which is held in place by acap 25 threaded onto the upper end of the cap 17. j

A coil spring 26 seats at its lower end on the head 10 of stud 8, and atits upper end bears against the lower or bottom wall of the socket 15,the spring serving to press the rib 16 of shell 13 against cap 17.Secured to the casing at one side thereof, is a sta tionary index finger27 which extends in proximity to a graduated dial 28 which is mounted onthe stem 18 to abut a shoulder 29 formed thereon, the stem above theshoulder being squared and receiving over its squared portion a boss 30which has handle 31 integral therewith, the boss being secured inposition by means of a washer 32 and a screw 33 which has its headengaging the washer and its threaded shank extending into the squaredportion of stem 18.

The valve shell 13 is formed with a series of openings 34 whichsuccessively increase in diameter, and which'are so arranged that whenthe shell is moved by handle 31 to open position, the opening oropenings of least diameter will first be brought to register with theoutlet 3, and at the same time, the rotation of the shell will effectpartial raising of the disk valve 6, due to the rod 11 ofstud 8, whichrod is caused to rotate with Upon further rotation of the shell, thenext adjacent opening or openings 34 will be alined with the outlet 3,and the valve disk 6 will be correspondingly farther raised, allowing agreater quantity of the fluid to enter through inlet 2, and egressthrough outlet 3, the bringing into register of the successive openings34 with outlet 3 resulting in corresponding raising of the disk valve 6that controls the inlet.

From the above it will be seen that there are two valves, onecontrolling the inlet and one the outlet, the two valves being operatedin unison, so that as the inlet valve permits a greater amount of fluidto enter the casing, the outlet valve will be correspondingly opened topermit the fluid to egress, the closing of the valve being likewisegradual, as will be evident.

In the modification shown in Fig. 7, the valve shell 13' is interiorlythreaded at 31 and engages with the threaded periphery of the disk valve6, the latter having a depending stem 32 that engages with an annularseat 33 formed at "the'inle't' end 2' of easing 1, the casing beingformed with grooved wings 7- in which engage the ends of the rod 11carried by the stem 32, the said rod ends being vertically slidable inthe grooves.

Theolial 28 is marked and relatedto the, index-finger 27 so that thevarious positions of the shell 13 will be indicatedupon the dial. 7

What is claimed is:

1. In-a valve, means to controltheinlet, means to control the outlet,and means whereby rotation of the-outlet controlling I means will causecorresponding movement lowthe shell for controllingthe inlet to-the icasing, :a studcarried by the valve, a spring seatingon-the stud andengaging the bottom wall ofthe shell socket, said shell havingits lowerend slotted, andva rod carried by the stud and having its endsextending; into said slots of-the shell.

Q3. Ina valve, an upper rotaryishellhavinga-series of graduated openingsforsuccessive register with the outlet,,a valve to control the inlet,means in connection with the valve to 'hold theshell inuppenposition,

and means whereby rotation o'f'the shell will cause movement of thevalve to correspondingly increaseor decrease the size of the inletopening.

4. In a valve, a shell having an opening for controlling the outlet avalvecontrolling the'inlet, a stud on said valve, means to .rotate'thevalveby movement of the shell,

and a spring engaging the stud of the valve and shell to holdthelatterup.

:5. The'combination in a (valve comprising a-valveto control the inlet,rotatable ;means to control the outlet, said means being-in superposedrelation to thevalve, a loose connectiombetween-said means and thevalve. whereby movement of the rotatable outlet means will causecorresponding movement tionaryfinger secured to the valve body andhaving its upper end disposed adjacent to the dialperiphery andextending :abOXG the upper face of said dial.

in; testimony whereof-I affix my signature inpresence of two witnesses.

CHARLES E. SGHREIDT.

Vitnesses DOROTHY WEN DLAND, ELIZABETH KUPP.

09 m: this ,patentmayi be obtained::for flveecents,each, byad;dress1ngthe commmloneraot:Patentu.

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